| 7,7,8,8—四氰基对苯醌二甲烷的光伏—气敏特性 |
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| 引用本文： | 江雷 王德军. 7,7,8,8—四氰基对苯醌二甲烷的光伏—气敏特性[J]. 高等学校化学学报, 1990, 11(12): 1419-1422 |
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| 作者姓名： | 江雷 王德军 |
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| 作者单位： | 吉林大学化学系 130023(江雷，王德军，刘旺，柴向东)，吉林大学化学系 130023(李铁津) |
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| 摘 要： | 用表面光电压谱技术研究了7,7,8,8-四氰基对苯醌二甲烷多晶的光伏-气敏特性。结果表明,在较高真空度条件下,该化合物有两类不同的表面光电压响应峰,分别位于390 nm(P_1)和480 nm(P_2)。探针气体吸附证明,P_1表现出较强的受体性,而P_2则显示出给体性质。给体性分子与该化合物的∏键轨道作用,而受体分子与其C≡N端基作用。
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| 关 键 词： | 表面光电压 TCNQ晶体 气敏 吸附 |
The Surface Photovoltage and Gas Sensitive Properties of 7,7,8,8-Tetracyanoquinodimethane |
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| Jiang Lei,Wang De-jun,Liu Wang,Chai Xiang-dong,Li Tie-jin. The Surface Photovoltage and Gas Sensitive Properties of 7,7,8,8-Tetracyanoquinodimethane[J]. Chemical Research In Chinese Universities, 1990, 11(12): 1419-1422 |
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| Authors: | Jiang Lei Wang De-jun Liu Wang Chai Xiang-dong Li Tie-jin |
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| Abstract: | In this paper, the surface photovoltage technique (SPV) was applied to the study of the pho-tovoltic and gas sensitive properties of 7,7,8,8-tetracyanoquinodimethane polycrystal. It was found that SPV showed two peaks at 390 nm(P1) and 480 nm(P2) in the ultraviolet-visible region, and they are opposite in phase. The results of gaseous adsorption reveals that P1 shows a characteristics of acceptor , while P2 shows that of donor. During the adsorption, the donor gas interacts with conjugate H* orbital, while the acceptor gas with C=N radical. |
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| Keywords: | Surface photovoltage Gas sensitive Adsorption |
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